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Nadir observations of sprites from the International Space Station
Author(s) -
Blanc E.,
Farges T.,
Roche R.,
Brebion D.,
Hua T.,
Labarthe A.,
Melnikov V.
Publication year - 2004
Publication title -
journal of geophysical research: space physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.67
H-Index - 298
eISSN - 2156-2202
pISSN - 0148-0227
DOI - 10.1029/2003ja009972
Subject(s) - sprite (computer graphics) , thunderstorm , nadir , environmental science , atmosphere (unit) , meteorology , remote sensing , international space station , atmospheric sciences , light emission , physics , optics , geology , astronomy , satellite , computer science , computer vision
The experiment LSO (Lightning and Sprite Observations) is dedicated to the optical study, from the International Space Station, of sprites occurring in the upper atmosphere above thunderstorms. The objectives were to study these phenomena and to validate a new measurement concept for future measurements of sprites from space at the nadir. The first measurements were performed in the frame of the flight of the French Astronaut Claudie Haigneré (mission Andromède) in October 2001. Observations were performed by two microcameras, one in the visible and near‐infrared and the other equipped with a moderately wide band filter at 761 nm. This filter includes the most intense N 2 1P emission of the sprites and partly the oxygen absorption A band of the atmosphere. The light emissions from sprites occurring in the middle and upper atmosphere are then differentiated from the emissions from lightning, occurring more deeply in the atmosphere and then more absorbed. This paper presents the first observations of sprites from space at the nadir and statistics about the respective intensities of lightning and sprites emissions as observed with this experiment.

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